Dyfyniad APA

Roe, G., & Allen, M. (1999). A comparison of competing explanations for the 100,000-yr ice age cycle.

Dyfyniad Arddull Chicago

Roe, G., and M. Allen. A Comparison of Competing Explanations for the 100,000-yr Ice Age Cycle. 1999.

Dyfyniad MLA

Roe, G., and M. Allen. A Comparison of Competing Explanations for the 100,000-yr Ice Age Cycle. 1999.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.